CVE-2022-44640

2022-12-2500:00:00

ubuntu.com

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.015 Low

EPSS

Percentile

86.5%

JSON

Heimdal before 7.7.1 allows remote attackers to execute arbitrary code
because of an invalid free in the ASN.1 codec used by the Key Distribution
Center (KDC).

Bugs

Notes

Author	Note
mdeslaur	per upstream Samba, this vulnerability doesn’t actually affect Samba, but the code has been patched in case the API is used in the future. See the following post: https://bugzilla.samba.org/show_bug.cgi?id=14929#c15

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchheimdal< 7.5.0+dfsg-1ubuntu0.3UNKNOWN
ubuntu20.04noarchheimdal< 7.7.0+dfsg-1ubuntu1.3UNKNOWN
ubuntu22.04noarchheimdal< anyUNKNOWN
ubuntu23.10noarchheimdal< anyUNKNOWN
ubuntu14.04noarchheimdal< 1.6~git20131207+dfsg-1ubuntu1.2+esm3) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchheimdal< 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	heimdal	< 7.5.0+dfsg-1ubuntu0.3	UNKNOWN
ubuntu	20.04	noarch	heimdal	< 7.7.0+dfsg-1ubuntu1.3	UNKNOWN
ubuntu	22.04	noarch	heimdal	< any	UNKNOWN
ubuntu	23.10	noarch	heimdal	< any	UNKNOWN
ubuntu	14.04	noarch	heimdal	< 1.6~git20131207+dfsg-1ubuntu1.2+esm3) Available with Ubuntu Pro or Ubuntu Pro (Infra-only	UNKNOWN
ubuntu	16.04	noarch	heimdal	< 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3) Available with Ubuntu Pro or Ubuntu Pro (Infra-only	UNKNOWN